HTC Desire 4G LTE on sale for $139.99 today through Monday August 4. That's 50% off the Desire's regular price of $279.99.
Update 8/1: use 10% off code RMN10OFF to get the Desire for $125.99.
The Desire features a dual-core 1.4 Mhz Qualcomm Snapdragon processor, LTE support, a 4.5 inch 540 x 960px display, auto-focus 5MP camera with LED flash and VGA front-facing camera. The battery is removable and there's 8GB of internal memory, 1GB RAM and a microSD slot that supports up to 32 GB memory cards. It runs a custom version of Android 4.2 with HTC's popular Sense overlay.
The Desire can be used with any of Virgin's Beyond Talk plans, which start at $35/month for unlimited LTE or 3G data (throttled to "3G speeds" after 2.5 GB), unlimited text and picture messaging and 300 voice minutes.
For more about the phone, see PhoneScoop's in-depth review, they really liked it, by the way.
For more about Virgin Mobile plans and service see: Prepaid Operator Profile: Virgin Mobile